Commits
Uwe L. Korn authored and Wes McKinney committed bf30235fa36
ARROW-306: Add option to pass cmake arguments via environment variable Author: Uwe L. Korn <uwelk@xhochy.com> Closes #149 from xhochy/arrow-306 and squashes the following commits: 11a3e66 [Uwe L. Korn] ARROW-306: Add option to pass cmake arguments via environment variable